EP2526307A1 - Dispositif soupape - Google Patents

Dispositif soupape

Info

Publication number
EP2526307A1
EP2526307A1 EP11701201A EP11701201A EP2526307A1 EP 2526307 A1 EP2526307 A1 EP 2526307A1 EP 11701201 A EP11701201 A EP 11701201A EP 11701201 A EP11701201 A EP 11701201A EP 2526307 A1 EP2526307 A1 EP 2526307A1
Authority
EP
European Patent Office
Prior art keywords
piston
valve
connection
pilot control
pilot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11701201A
Other languages
German (de)
English (en)
Other versions
EP2526307B1 (fr
Inventor
Frank Schulz
Peter Bruck
Markus Bill
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hydac Fluidtechnik GmbH
Original Assignee
Hydac Fluidtechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hydac Fluidtechnik GmbH filed Critical Hydac Fluidtechnik GmbH
Priority to EP16000905.6A priority Critical patent/EP3073126B1/fr
Publication of EP2526307A1 publication Critical patent/EP2526307A1/fr
Application granted granted Critical
Publication of EP2526307B1 publication Critical patent/EP2526307B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • F15B13/043—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
    • F15B13/0435—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves the pilot valves being sliding valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/42—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor
    • F16K31/423—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor the actuated members consisting of multiple way valves
    • F16K31/426—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor the actuated members consisting of multiple way valves the actuated valves being cylindrical sliding valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86582—Pilot-actuated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86582—Pilot-actuated
    • Y10T137/86614—Electric

Definitions

  • the invention relates to a valve device with a valve housing and with a, in a piston bore of the valve housing axially displaceably arranged valve piston via which a first consumer port and a second consumer port are alternately connectable to a pressure port and a tank port.
  • the valve piston is displaceable from a centered, central rest position for connecting the first consumer port to the pressure port and the second consumer port to the tank port in a first direction and displaceable in an opposite direction for reverse fluid-carrying connection of the ports, wherein a pilot control is provided which has a first pilot chamber, which acts on a first piston rear side of the valve piston with a pressure force, and which has a second pilot chamber, which acts on a second piston rear side of the valve piston with a compressive force, wherein the first and second pilot control cavities, each with a fluid-carrying connection with the Pressure connection are connectable, wherein a first pilot piston and a second pilot piston are provided, each releasing or blocking a fluid-conducting connection between the pilot control chambers and the tank port, and wherein the pilot control i n the nature of a slide valve is formed.
  • Valve devices are available in a variety of embodiments, for example, as multiway valves. In conjunction with so-called electromagnetic actuation, they are an important component of so-called proportional valve technology. This technique is essentially characterized in that an electrical input signal is converted as voltage in an electronic amplifier according to the voltage level in an electronic current. Proportional to this electric current generates a proportional solenoid as a solenoid, the output variables force or way.
  • proportional valve technology lies in the controlled switching transitions, the stepless control of the setpoints and the reduction of the hydraulic equipment for certain control tasks. Furthermore, with proportional valves fast and accurate movements are possible while improving the accuracy of the control operations.
  • the known valve device solutions also leave something to be desired, in particular in the field of proportional valve technology, for some control tasks, such as double-acting hydraulic working cylinders in which the control for positioning tasks takes place while avoiding mechanical coupling elements Regarding the functional safety of the whole system as well as the quick response.
  • a valve device is known with two opposite, associated with a valve housing actuating magnet with valve bodies mounted in the form of at least one pump port P, at least two Verbaucher- or Nutzan getting A, B and at least two tank ports T1, 12 and a valve piston having radial projections, each of which can be assigned to a fluid connection point ⁇ , ⁇ , ⁇ , ⁇ , 12 in the valve housing and fluid-carrying paths between the projections, wherein in a neutral position, the path to the respectively assignable user port A, B partially or completely blocked is, or wherein at freed Nutzan Whyn A, B, the respective pump port P is completely blocked by the assignable projection.
  • the known solution relates to a hydraulic valve which can be used to control a hydraulic actuator in a roll stabilization system of a motor vehicle. In the known solution, however, it is not excluded that any disturbing influence variables adversely affect the hydraulic valve system.
  • an electro-hydraulic control valve is known, with a main housing as a valve housing, which encloses an axial bore, in which a valve member is adjustable as a valve piston.
  • the ends of the valve piston are made of magnetizable material and the housing part are as actuators solenoid devices to the associated with outer ends of the axial bore to pull the valve member towards one or the other end of the axial bore by exciting one or the other solenoid device.
  • the solution known to pressure pressure piston which pass through the valve piston at its two ends. Despite the possibility of influencing the Störöhleissen over the respective pressure transducer piston, this known solution leaves nothing to be desired, as far as the complete compensation of such disturbances.
  • DE 600 16 510 T2 describes a pilot-operated directional control valve with position detection, with a housing with a number of connections and a piston bore in which each port opens.
  • a valve piston is guided axially displaceable in the piston bore for changing the flow paths between the terminals.
  • control means for controlling the valve piston comprise a piston on each side of the valve piston and one or two pilot valves for positioning the valve piston by controlling the pilot acting on the piston pilot fluid.
  • a magnet is provided which is mounted on one side of the valve piston so that it can be moved in synchronism with the valve piston. The magnet is arranged so that it adjoins at least one point of the valve piston.
  • a magnetic sensor which is installed so as to detect the magnetic force of the magnet over the entire displacement distance of the valve piston.
  • valve devices require displacement sensors and an evaluation and control electronics. As a result, they are overall complex in structure and disturbances in the operation are not excluded in this respect.
  • a valve device of the type mentioned is from DE
  • the pilot valve and the pilot chamber are each arranged in a control cover, which is arranged on a side surface of the valve housing.
  • the actuator is in this case arranged on a side surface of the control cover. On an opposite side surface of the control cover, an adjustment of the control valve can be arranged.
  • the present invention seeks to provide a valve device that is simple in construction and safe operation, even in adverse operating conditions allows.
  • each pilot piston has according to the invention on its outer periphery an annular channel.
  • the annular channel makes it possible to connect a pilot-control-chamber-side supply channel of pilot-control oil with a channel for discharging pilot-control oil to the respective tank connection of each pilot valve. If the pilot control is opened such that pressure medium or pilot oil passes from the pilot control chamber via the annular channel to a tank connection, a pressure drop occurs on the rear side of the valve piston and the valve piston is displaced in the opposite direction, since the other pilot control chamber remains at pump pressure level, so that the valve piston through the adjusting pressure imbalance in the pilot control chambers moves towards the respective electromagnet.
  • pilot control chambers lead fluid-carrying connections advantageously in the form of narrow longitudinal channels, each with a radial, short in length puncture channel to the annular channel, which is arranged on the respective outer peripheral surface of each pilot piston.
  • the shorter stitch channels diametrically in the valve housing opposite branch channels and longitudinal channels, which lead to the respective tank connection in the valve housing.
  • the relevant pilot piston opens the fluid-conducting connection between the first pilot control chamber and the tank connection. Pressure medium from the first pilot control chamber can escape into a pressure medium tank.
  • the valve piston is moved by the force of the system pressure of the pressure port into the second pilot control chamber in the direction of the first pilot piston to be moved onto the valve piston, and a corresponding consumer port is connected to the pressure port. Another consumer connection is connected to the tank connection.
  • the pilot piston is designed in the manner of a spool, so that each pilot valve is designed as a valve, preferably without a seal. An inhibiting friction during operation is thereby minimized and furthermore it is ensured that the respective pilot valve can exert its throttling function undisturbed.
  • valve piston moves further towards the desired position. If the electric current for the first electromagnet is lowered or switched off, then the pilot piston, preferably additionally caused by a force accumulator, moves in the direction of a blocking position of the fluid-carrying connection between the first pilot control chamber and the tank connection. The pressure building up again in the first pilot control chamber pushes the valve piston again in the direction of its rest position.
  • the valve piston can be axially displaced in the opposite direction even when the second electromagnet is energized in the same way as described above. In this way, the second consumer port can connect to the pressure port and the first Limoan- conclusion with the tank port.
  • the pressure medium in the pilot control chambers can act directly on the respective piston rear side of the valve piston.
  • the respective pilot control chambers are fluid-conducting respectively connected with branch channels, which are connected in the radial direction, the valve housing by cross-connecting to a common pressure port hole, which extends through the valve housing in the axial direction preferably to its two free end sides.
  • the branch channels and the pressure connection bore form a first and second fluid-conducting Connection for the two pilot control chambers and can be acted upon by the control or pump connection pressure. In this way, an internal pressure equalization between the two pilot control chambers is achieved, as well as a simple application of the desired pressure.
  • a compression spring is arranged between the valve piston and each pilot piston, wherein the piston stroke of the valve piston is proportional to the magnetic current of the magnetic device when the pilot control is open.
  • the force acting on the valve piston compression spring signals the position of the valve piston back to the respective pilot piston, so that any disturbances, for example, caused by flow forces can be corrected directly.
  • the position of the valve piston is also directly correlated with the applied magnetic current.
  • a piece of equipment is arranged, which in turn communicates with the free end of the respective pilot piston via a bearing ball. The ball allows non-stop operation when the pilot piston and the valve piston interact.
  • the respective pilot piston is acted upon by the associated electromagnet with thrust in the direction of the valve piston, as soon as the electromagnet is energized.
  • the fluid-conducting connection is opened by the respective pilot control chamber via the annular channel to the respective pilot piston to the respective tank connection.
  • a further compression spring is provided, which is supported on the one hand on a VentilgeHouseabsatz and on the other at a Radialerweite- tion of the pilot piston so as to bring the pilot piston with its radial extension to a stop flange of the valve housing to the plant.
  • each electromagnet In the de-energized state of each electromagnet, this results in a closed position of the pilot piston or its annular channel between the respective pilot chamber and the tank port.
  • the connecting channels which represent the fluid-carrying connection between the respective pilot control chambers and the respective tank connection via the respective annular channel on the pilot piston, are formed in the valve housing as longitudinal channels and transversely extending branch channels.
  • valve piston In a neutral position, the valve piston is held by an energy accumulator acts on both piston rear sides with the same pressure force in addition to the same pressure force of the pressure medium in the pilot control chambers.
  • the two energy accumulators can be compression springs.
  • the shuttle valve locks and the pressure at the pressure port is transferred directly from the pump to the two pilot control chambers.
  • an energy store or, in particular, a compression spring can additionally be used in each pilot control chamber.
  • a symmetrical and thus easy-to-manufacture embodiment of the valve device is obtained by selecting a central position of the pressure port of the pressure medium pump with respect to the longitudinal axis of the valve housing. On both sides of the pressure port close to the first and the second consumer port and a first and second tank port, each preferably the same distance to the pressure port.
  • a pressure connection for the admission of the pilot control chambers can be provided separately on the valve housing and branch off to the two pilot control chambers.
  • valve device according to the invention will be explained in more detail with reference to various embodiments according to the drawing. This show in principle and not to scale representation of the
  • FIG. 1 shows a longitudinal section through a first embodiment of the valve device according to the invention
  • FIG. 3 shows a longitudinal section through a further third embodiment of the valve device according to the invention. 4 in an enlarged view a framed in Figure 1 with IV
  • valve device 1 for controlling pressure medium, such as hydraulic oil to a consumer, not shown.
  • the valve device 1 has a valve housing 2, which is formed substantially cylindrical.
  • a through hole which is designed as a piston bore 3 or guide cylinder for a valve piston 4, introduced accordingly.
  • a first and a second electromagnet 5, 6 are mounted in each case in a center bore in the valve housing 2 on both sides of the valve housing 2 in a manner not shown and described.
  • the electromagnets 5, 6 are designed as proportional magnets.
  • valve housing 2 fluid connection points are further introduced in the form of at least one pump or pressure port P, two consumer ports A, B and two tank ports T1, T2.
  • the longitudinal direction in the valve housing 2 guided valve piston 4 has outer circumferential side radial projections 27,28.
  • the respective radial outer circumference of the respective projection is selected such that it can slide sealingly against the inner circumferential side of the piston bore 3.
  • the two central projections 27 are the consumer ports A, B and the two axially arranged at the ends of the valve piston 4 projections 28 associated with the tank ports T1 and T2.
  • valve housing 2 On its two opposite sides, the valve housing 2 in each case has a pilot control 7 with a first pilot control chamber 8 and a second pilot control chamber 10, the respective volume of which can be changed by means of the displaceable valve piston 4.
  • the respective pilot control chambers 8,10 are fluid-conducting respectively connected with branch channels 29,30, which are connected in the radial direction, the valve housing 2 by cross-section to a common pressure port hole 31 which passes through the valve housing 2 in the axial direction to its two free end faces.
  • the branch channels 29, 30 and the pressure connection bore 31 form a first and second fluid-conducting connection 12, 13 for the two pilot control chambers 8, 9 and can be acted upon by the control or pump connection pressure P.
  • the pilot control 7 itself is designed in the manner of a slide valve 18, in which a first and second pilot piston 14,1 5 in a corresponding, circular in cross-section and in diameter relative to the longitudinal bore 3 for the valve piston 4 smaller longitudinal bore 32 in the valve housing 2 longitudinally displaceable guided.
  • Each pilot piston 14,15 is surrounded on the outer peripheral side of pressure relief grooves that at least partially ensure the freedom from leakage in this axial region for the pilot piston 14,15 and thus form a kind of sealing system 26.
  • the pressure relief grooves shorten the effective gap length of the sealing gap and thus reduce the tendency to clamp.
  • the pilot control chamber 8, 10 is arranged between each piston rear side 9, 1 1 of the valve piston 4 and a valve insert holding the electromagnets 5, 6, which adjoins the respective end of the valve piston 4. From the respective pilot control chambers 8, 10, further fluid-conducting connections 16, 7 initially lead in the form of narrow longitudinal channels 35, each with a variable Dialen, in length very short stitching channel 36 to an annular channel 19 which is disposed on the respective outer peripheral surface 20 of each pilot piston 14,15.
  • valve piston 4 is in its closed switching position.
  • the valve piston 4 has a pin-like, smaller diameter extension 39 in relation to its other diameter.
  • the extension 39 which is formed integrally with the valve piston 4 at both ends of the valve piston 4, projects axially approximately to the middle of the respective pilot control chambers 8, 10.
  • Each extension 39 projects through an abutment disk 40 of a respective abutment piece 23.
  • the respective abutment piece 23 has at its end facing away from the respective extension 39 a disk-like enlargement, which in each case carries an abutment ball 22 in a corresponding recess.
  • the free end of each pilot piston 14,15 is based on the investment ball 22 so far.
  • the compression spring 21 has a smaller diameter than in each case a further compression spring 25, which is supported on the stopper plate 40 and on the respective valve insert 34.
  • the compression spring 25 is centered in an annular groove 43 in the contact washer 40 and in an annular groove 44 which is arranged at the free end of the valve core 34. It encloses the respective compression spring 21 radially.
  • a further third compression spring 24 is provided in order to move the respective pilot piston 14, 15 into a "closed position.”
  • an annular space 47 is provided in the valve insert 34.
  • a bottom 48 of the respective annular space 47 rests The respective compression spring 24 presses the radial extension 49 against a respective stop collar 50 of a screw socket, via which the respective electromagnet 4, 5 is screwed into the respective valve insert 34
  • the free end 51 of the respective pilot piston 14, 15 is in contact with a free end of an actuating tappet 52 of each electromagnet 5, 6.
  • the pilot control 7 is opened to the effect that pressure medium or pilot oil passes from the pilot control chamber 8 via the longitudinal channel 38 to the tank port T1.
  • the pressure drop occurs on the rear side 9 of the valve piston 4, and the valve piston 4 is displaced to the left, as seen on the rig 1, counter to the action of the compression spring 21, since the second pilot chamber 10 remains at the pump pressure level P, so that the Valve piston 4 is moved by the self-adjusting pressure imbalance in the pilot control chambers 8,10 in the direction of the first electromagnet 5.
  • the dashed lines in the figures longitudinal bore shown in the valve insert 34 provides the pressure equalization between the pilot chamber and pole tube ago, so that the pilot piston 14 is in equilibrium of forces.
  • the pertinent piston stroke of the valve piston 4 is proportional to the magnetic force of the electromagnet 5.
  • the compression spring 21 reports the position of the valve piston 4 back to the pilot piston 4, so that disturbances, such as flow forces, can be compensated in such a way and the position of the valve piston 4 thus always corresponds to the magnetic force of the electromagnet 5 in the energized state.
  • valve piston 4 When the energization of the first electromagnet is lowered or released, the valve piston 4 returns under the action of the compression springs 21 and 25 to its original position. The same sequence in the reverse direction results when the second electromagnet 6 is energized.
  • the consumer connection B comes into fluid-conducting connection with the tank connection 12 and the consumer connection A comes into fluid-conducting connection with the pressure connection P.
  • a pilot-operated directional control valve is thus realized, which already enables the aforementioned fluid-carrying connections at a very low pilot pressure.
  • the compression spring 21 is not mandatory; However, it improves the switching back of the pilot piston 14,15 and thus overall the dynamics of the valve assembly 1.
  • the compression spring 21 is used to report the piston position as a force in the magnet system.
  • the realized pilot control 7 is designed in the manner of a slide valve, this being the best solution for the uniform switching behavior under different operating conditions and pressure curves.
  • the supply pressure for the two pilot control chambers 8,10 not only from the pressure port P, but also via a coupling of the consumer ports A, B and the pressure port P with the interposition of a shuttle valve W either directly from the pressure port P. or one of the consumer ports A, B are tapped before the pressure medium is supplied to the pilot control chambers 8,10.
  • the valve device can be operated even when the pressure medium pump. It can, as shown particularly in Figure 3, be advantageous, by a parallel connection of said ports P, A, B via one in the direction of the pilot control chambers 8.10 opening check valve 53,54,55 between the terminals the highest, available Tap off fluid pressure.
  • the thus controlled pilot valve device 1 requires no displacement sensors for the valve piston 4, also no evaluation and control electronics is absolutely necessary.
  • the valve device 1 thus constructs structurally simple and has a low susceptibility due to its mechanical design. In an interruption of the power supply of the electromagnets 5,6, for example in Whitney l, the valve piston 4 moves by itself in its spring-centered, locking center position back.

Abstract

L'invention concerne un dispositif soupape doté d'un carter de soupape (2) et d'un piston de soupape (4) disposé de façon à pouvoir coulisser axialement dans un alésage de piston (3) du carter de piston (2), piston par lequel un premier raccord de consommateur (A) et un second raccord de consommateur (B) peuvent être reliés alternativement à un raccord de pression (P) et à un raccord de réservoir (T1, T2) par l'effet d'un premier électroaimant (5) et d'un second électroaimant (6), une précommande (7) étant prévue, laquelle présente un premier espace de précommande (8) qui alimente un premier côté arrière du piston (9) du piston de soupape (4) avec une force de pression, et qui présente un second espace de précommande (10) qui alimente un second côté arrière de piston (11) du piston de soupape (4) avec une force de pression, le premier espace de commande et le second espace de commande (8, 10) pouvant être reliés chacun par une liaison (12, 13) véhiculant du fluide au raccord de pression (P), un premier piston pilote (14) et un second piston pilote (15) étant prévus, lesquels libèrent ou ferment à chaque fois une liaison véhiculant du fluide (16, 17) entre les espaces de précommande (8, 10) et le raccord de réservoir (T1, T2), lequel dispositif est caractérisé en ce qu'au moins un piston pilote (14, 15) présente un canal annulaire (19) sur sa surface périphérique extérieure (20), lequel commande une liaison véhiculant du fluide (16, 17) entre l'espace de précommande respectif (8, 10) et le raccord de réservoir respectivement attribué (T1, T2).
EP11701201.3A 2010-01-21 2011-01-15 Dispositif soupape Active EP2526307B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16000905.6A EP3073126B1 (fr) 2010-01-21 2011-01-15 Dispositif de soupape

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010005228A DE102010005228A1 (de) 2010-01-21 2010-01-21 Ventilvorrichtung
PCT/EP2011/000158 WO2011088974A1 (fr) 2010-01-21 2011-01-15 Dispositif soupape

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP16000905.6A Division EP3073126B1 (fr) 2010-01-21 2011-01-15 Dispositif de soupape
EP16000905.6A Division-Into EP3073126B1 (fr) 2010-01-21 2011-01-15 Dispositif de soupape

Publications (2)

Publication Number Publication Date
EP2526307A1 true EP2526307A1 (fr) 2012-11-28
EP2526307B1 EP2526307B1 (fr) 2016-06-08

Family

ID=44034498

Family Applications (2)

Application Number Title Priority Date Filing Date
EP16000905.6A Active EP3073126B1 (fr) 2010-01-21 2011-01-15 Dispositif de soupape
EP11701201.3A Active EP2526307B1 (fr) 2010-01-21 2011-01-15 Dispositif soupape

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP16000905.6A Active EP3073126B1 (fr) 2010-01-21 2011-01-15 Dispositif de soupape

Country Status (4)

Country Link
US (1) US9115730B2 (fr)
EP (2) EP3073126B1 (fr)
DE (1) DE102010005228A1 (fr)
WO (1) WO2011088974A1 (fr)

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US9546737B1 (en) * 2015-09-09 2017-01-17 James Wang Solenoid valve
US20230193359A1 (en) 2017-07-27 2023-06-22 John Fred KATZ Split G-Quadruplexes for Capture and Detection of Nucleic Acids
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CN108661973B (zh) * 2018-05-18 2020-08-04 凯斯通阀门有限公司 一种自动翻转控制阀
CN108679029B (zh) * 2018-05-18 2019-12-24 江苏南京白马现代农业高新技术产业园有限公司 一种油缸控制阀
DE102018132448A1 (de) * 2018-12-17 2020-06-18 ECO Holding 1 GmbH Expansionsventil für Kältemittel und Klimaanlage, Wärmemanagementsystem und Batteriekühlsystem mit einem Expansionsventil
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Also Published As

Publication number Publication date
US9115730B2 (en) 2015-08-25
EP3073126B1 (fr) 2018-03-14
US20120285568A1 (en) 2012-11-15
WO2011088974A1 (fr) 2011-07-28
DE102010005228A1 (de) 2011-07-28
EP3073126A1 (fr) 2016-09-28
EP2526307B1 (fr) 2016-06-08

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